The Quad "1 Over 3" 100 Series Desk Stand is an expandable, modular, tool-less Freestanding monitor mounting solution which allows four monitors to be positioned in a seamless 'side-by-side' orientation and a single monitor above the middle monitor. The 25" wide crossbar provides up to 5 extra inches of extension on each side of the crossbar, accommodating up to three 24" monitors (measured diagonally bezel to bezel). This unit has 2 Height Adjustable Quick Release Pivots which can be precisely adjusted up and down using a precision knob. Both these outer pivots and the 2 central Standard Quick Release Pivots are capable of tilting 20º up, 10º down and 25º left and right. This allows the user sufficient range of movement to ensure monitors are in almost any desired position relative to each other in addition to the capability of rotating from portrait to landscape orientation. All pivots are VESA 75 and 100 compatible and easily moved along the crossbar, or removed from the stand in seconds. The heavy weighted 18" wide x 16" deep Heavy Duty base is 29 lbs and the vertical pole is 28".